Weather in Chaniá in August
Greece · 20-year averages, August
Prime time. If you get to pick your dates, August is the one. Highs average 30.5 °C, lows 24.7 °C, and rain falls on 1 days — nothing in the month is working against you.
August ranks 6 of 12 in Chaniá: past the worst of the year but short of June, which is the month to book if the dates are open.
Rain falls on only 1 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 30.5 °C days and 24.7 °C nights; the spread matters more here than any single number.
What the averages hide
Averages flatten a month, and this one hides a few things: 20 days top 30 °C, making the heat continuous rather than occasional; the day barely swings — 5.8 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest August day reached 35.9 °C and the coldest night fell to 22.5 °C.
August is dependably dry, and that reliability is the point: across the twenty years measured, the wettest August on record still only managed 15 mm, and the driest managed 0 mm. There is no meaningful variability to plan around, which makes this one of the few months anywhere that you can build a fixed outdoor itinerary against without a fallback. The wettest single day in twenty years of Augusts brought 7 mm. Rain simply is not the variable that decides this trip — heat, crowds and cost are.
Wind is light at 15.6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 64%.
How August sits in the year
Temperatures hold steady either side: 30.4 °C in July, 30.5 here, 27.8 in September. Nothing about the timing within the month matters much.
Daylight in August
13.5 hours of daylight, losing 1 hours across the month. That is between Chaniá's extremes of 14.5 and 9.8 hours, so days are long enough not to constrain the plan.
Sea temperature
The sea sits at about 25.9 °C in August — warm enough to stay in as long as you like. This is the warmest the water gets all year.
How busy it gets
Peak season. Expect the highest prices of the year and to be booking well ahead.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
August in Chaniá versus nearby
If Chaniá is one option among several, the nearby comparison is worth making. Firá is a better bet in August — 4.9 °C cooler, the same number of rain days. Kalamata is the weaker option in August — 2.9 °C warmer, 1 day more rain.
So: August works, with June the better month by 13 points if the dates can move. If they cannot, nothing here should stop you booking.
Every month in Chaniá
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 14.6 | 11.3 | 16 | 98 | 79 | 10 | 16.4 | 53 |
| February | 14.7 | 11.2 | 13 | 90 | 79 | 10.9 | 15.7 | 58 |
| March | 16.6 | 12.3 | 10 | 51 | 78 | 11.9 | 15.8 | 72 |
| April | 19.4 | 14.2 | 6 | 27 | 74 | 13.1 | 16.6 | 88 |
| May | 23.5 | 17.6 | 4 | 17 | 70 | 14 | 18.9 | 94 |
| June | 27.6 | 21.5 | 1 | 4 | 66 | 14.5 | 22.2 | 96 |
| July | 30.4 | 24.2 | 1 | 3 | 62 | 14.3 | 24.9 | 83 |
| August | 30.5 | 24.7 | 1 | 5 | 64 | 13.5 | 25.9 | 83 |
| September | 27.8 | 22.8 | 5 | 21 | 67 | 12.5 | 25.1 | 88 |
| October | 24 | 19.6 | 10 | 57 | 72 | 11.3 | 23.3 | 81 |
| November | 20.1 | 16.4 | 12 | 84 | 76 | 10.3 | 21.1 | 78 |
| December | 16.4 | 13.1 | 16 | 103 | 78 | 9.8 | 18.5 | 59 |
See all twelve months in Chaniá, or where else to go in August.
Planning the rest of the trip
- Flight time to Chaniá how long you are actually in the air
- Chaniá time zone and the difference from home
- Days until your trip count down to the departure date